Missing Carb part?

How did you set the float level? That is important. The fuel level should be at the bottom of the sight plug hole. When you bump the fender fuel should dribble out of the hole when the plug is removed.
View attachment 1715924531
this is your sight plug for the secondary side. There is one for primary also. As @ratbastad said, what you are missing is the choke flap but you may not need it. If not just remove all of the choke stuff and disregard it. Throttle blip bog could be caused by a few things, accelerator pump adjustment, squirters clogged, float level, way too high, transfer slot sync incorrect. Carb and timing adjustments go hand in hand and I recommend reading as much as you can regarding tuning a Holley before making any significant adjustments. They are simple to tune and the knowledge is good to have.

I did as you said to adjust the float, when I first opened the sight the fuel was pouring out, after about 4 adjustments I opened it and a tiny drop came out and when I hip checked the fender some sloshed out.

I think my next step in troubleshooting is to check the accelerator pump adjustment.

It's a deep rabbit hole getting into the whole carburetor thing...